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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2006-07-04 14:11:23 +1000 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2006-07-07 20:19:15 +1000 |
| commit | e70e943847bdae13175bf3a8bca6328e369de90a (patch) | |
| tree | 98e5fdede7ccf87f70d557e148bb379d2a5bea56 | |
| parent | 1e031d65b0cb5f882b20ebc356ea0345ff18dbf0 (diff) | |
| download | blackbird-op-linux-e70e943847bdae13175bf3a8bca6328e369de90a.tar.gz blackbird-op-linux-e70e943847bdae13175bf3a8bca6328e369de90a.zip | |
[POWERPC] Fix default clock for udbg_16550
This patch makes it possible to provide 0 as the clock value for
udbg_16550, making it default to the standard 1.8432Mhz clock
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
| -rw-r--r-- | arch/powerpc/kernel/udbg_16550.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/udbg_16550.c b/arch/powerpc/kernel/udbg_16550.c index 0835b4841dea..2d17f2b8eda7 100644 --- a/arch/powerpc/kernel/udbg_16550.c +++ b/arch/powerpc/kernel/udbg_16550.c @@ -81,10 +81,14 @@ static int udbg_550_getc(void) void udbg_init_uart(void __iomem *comport, unsigned int speed, unsigned int clock) { - unsigned int dll, base_bauds = clock / 16; + unsigned int dll, base_bauds; + if (clock == 0) + clock = 1843200; if (speed == 0) speed = 9600; + + base_bauds = clock / 16; dll = base_bauds / speed; if (comport) { |
